From 245f7cec2ea9005a360478959e4a446c666eab75 Mon Sep 17 00:00:00 2001
From: Artem Boldariev <artem@boldariev.com>
Date: Tue, 10 May 2022 19:44:28 +0300
Subject: [PATCH] Avoid aborting when uv_timer_start() is used on a closing
 socket

In such a case it will return UV_EINVAL (-EINVAL), leading to
aborting, as the code expects the function to succeed.
---
 lib/isc/netmgr/netmgr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/isc/netmgr/netmgr.c b/lib/isc/netmgr/netmgr.c
index b6ae1ca319..ad9dc3d57f 100644
--- a/lib/isc/netmgr/netmgr.c
+++ b/lib/isc/netmgr/netmgr.c
@@ -2033,6 +2033,10 @@ void
 isc__nmsocket_timer_restart(isc_nmsocket_t *sock) {
 	REQUIRE(VALID_NMSOCK(sock));
 
+	if (uv_is_closing((uv_handle_t *)&sock->read_timer)) {
+		return;
+	}
+
 	if (atomic_load(&sock->connecting)) {
 		int r;